DocumentCode
2936645
Title
A novel hybrid excitation sequence for a sensorless motor
Author
Wang, S. ; Lin, S. ; Ju, J. ; Huang, D.
Author_Institution
Ind. Technol. Res. Inst., Hsinchu
fYear
2006
fDate
8-12 May 2006
Firstpage
202
Lastpage
202
Abstract
Sensorless driving has been widely used for a spindle motor in HDD and DVD devices. This paper raises a new sequence to acquire larger bemf quickly than the conventional sequences. The hybrid sequences raised by the paper will combine the two sequences i.e., three-step and six-step to excite the motor. A spindle motor applied in a 50X CD-ROM driver is taken as an example to test these sequences. The amplitude of back EMF excited by the hybrid sequences is about 32% and 8% more compared with the six-step and the three-step; furthermore, the waveform of back EMF is symmetrical enough. It proves that the announced sequences are valid.
Keywords
CD-ROMs; digital versatile discs; electric potential; motor drives; sequences; 50X CD-ROM driver; DVD device; HDD device; back EMF; novel hybrid excitation sequence; sensorless motor; six-step sequence; spindle motor; three-step sequence; CD-ROMs; Commutation; Control engineering; DVD; Electrical equipment industry; Laboratories; Motor drives; Testing; Torque; Voltage;
fLanguage
English
Publisher
ieee
Conference_Titel
Magnetics Conference, 2006. INTERMAG 2006. IEEE International
Conference_Location
San Diego, CA
Print_ISBN
1-4244-1479-2
Type
conf
DOI
10.1109/INTMAG.2006.375784
Filename
4261635
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